FlightGear Flight Pro Sim Statement (v1.4a):

As many people will be aware, there is a (self described) "new" flight
simulator product that is being widely and actively marketed at the
moment under various names - Flight Pro Sim, Pro Flight Simulator,
etc. These "new" simulators are simply a rebranding of the FlightGear
open-source flight simulator. However, the marketing tactics of the
Flight Pro Sim guys have caused more than a bit of confusion with end
users. To help provide some clarity and answer some common questions,
we (the core FlightGear development team) felt it was appropriate to
make a statement, and provide a FAQ.

FlightGear is an open-source flight simulator that was created in
1996. It is released under the GNU General Public License v2, and as
such, it is free to use, modify and distribute with few
restrictions. It has been developed with the collaboration of a large
number of individuals over the last 14+ years. The complete FlightGear
application and source code can be always downloaded for free from
http://www.flightgear.org.

Flight Pro Sim is a commercial product that simply rebrands
FlightGear. Investigation by a number of the FlightGear developers
has found no difference between this and the FlightGear v1.9.1 release
other than a change of name. Flight Pro Sim is in no way endorsed or
supported by the core FlightGear development team.

Given the similarities between Flight Pro Sim and FlightGear, we would
recommend that prospective buyers download FlightGear for free and
satisfy themselves that Flight Pro Sim provides worthwhile value for
money before purchasing it.

FAQ:

Q: What is the difference between FlightGear and Flight Pro Sim?
A: As far as we have been able to make out, the only difference
between FlightGear v1.9.1 and Flight Pro Sim is a change in name
throughout the software, and the fact that you have to pay for it.

Q: Is it legal for the makers of Flight Pro Sim to simply re-brand
FlightGear ?
A: Under the GNU GPL v2 (http://www.gnu.org/licenses/gpl-2.0.html)
this is legal, provided that they distribute the source code (or make
it available). The main issue that FlightGear developers have is the
misleading marketing tactics used by pro flight sim that target
unsuspecting users who aren't yet familiar with FlightGear. This is
primarily an ethical, not a legal issue.

Q: Is it legal to sell a copy of FlightGear, whether re-branded or
not?
A: Yes, provided the seller is in compliance with a number of
conditions detailed in the GPL. In fact, those interested in receiving
a DVD containing FlightGear may do so through the main FlightGear
website, and directly contribute to the project (though they may want
to wait for the upcoming release in the new year).

Q: Has Flight Pro Sim paid any money to FlightGear for the rights to
the program ?
A: No. No such payment is required, as FlightGear is GPL software. No
such payment has been offered, no such payment has been made. Any
claims by Flight Pro Sim that they support the FlightGear project are
entirely wishful thinking on their part.

Q: Why do the FlightGear developers allow this ?
A: The freedom to modify and enhance FlightGear is a core part of the
project, and of open-source in general. Restricting the modifications
that are allowed and what people can do with the software goes against
that ethos.

Q: Is there any relationship between the makers of Flight Pro Sim and
the FlightGear Project?
A: No.

Q: Has Flight Pro Sim contributed to the FlightGear project at all ?
A: No.

Q: I have purchased Flight Pro Sim. Can I get a refund ?
A: That is something you will have to take up with the distributors of
Flight Pro Sim.

Q: This whole situation makes me upset! What can I do?
A: First of all, the main problem here is the marketing tactics used
by pro flight sim which exhibit very dubious ethical values. The
FlightGear development teams feels the best way to combat this problem
is through positive FlightGear marketing and by honestly pointing out
that pro flight sim is simply a rebranding of an already free flight
sim called FlightGear.

We want all of you to stay positive, to be honest and to be fair!

If you want to help combat misleading marketing, let's all get the word
out about FlightGear. FlightGear doesn't have the kind of advertising
budget that the pro flight sim guys do. We need you!!! Please post
where ever you can on web sites, forums, blogs, facebook, etc. We
don't mind if someone chooses to buy pro flight sim, in fact that's
great, as long as they have complete information in advance and aren't
being misled by a slimy sales pitch that sounds too good to be true.

So let's get the word out and try to make sure that pro flight sim has
to market to an "educated" audience!